Update git submodules

* Update docs/submodules/releng-xci from branch 'master'
  - xci: Add OS variables to the post-deployment playbook

    OSM needs access to OpenStack credentials and authentication url.
    This patch would provide that using the xci_flavor specific
    user_variables.yml file. This patch is necessary to complete the
    initial integration of OSM.

    installer-type:osa
    deploy-scenario:os-nosdn-osm

    Change-Id: Ic228b323fc69ce46c8093f6dfbc116d8c71a0391
    Signed-off-by: Venkata Harshavardhan Reddy Allu <venkataharshavardhan_ven@srmuniv.edu.in>

diff --git a/docs/submodules/releng-xci b/docs/submodules/releng-xci
index ebe6bd4..02307e5 160000 (submodule)
--- a/docs/submodules/releng-xci
+++ b/docs/submodules/releng-xci
@@ -1 +1 @@
-Subproject commit ebe6bd459f7751fe7a82a6f5c5f78c393465e3fc
+Subproject commit 02307e5d078e52d2234749f8f2f3edf920db7c75